8.d) Air Quality Monthly Site Review - December 2013INDOOR
ENVIRONMENT GROUP
2487 7th Ave E
North St. Paul, MN 55109
Dust Control Activities
Monthly Site Review
Report Type:
P-1 Investigation summary
Abatement/remediation summary
Project update
r Site Clearance report
Additional Reports/information to follow?
F Yes Fv-1 No
Client:
Contact:
Date of Investigation
City of Scandia
Kristina Handt
December 17, 2013
Project Name:
Report Date:
Zavoral Mine Dust Emissions Monitoring
1/14/2014
Project Location:
Project #
Zavoral Mine, Scandia MN
2055-002
Project Description:
Dust control monitoring and oversight during aggregate mining and hauling operations
Completed
as per DCP
Task/Item
Notes/Recommendations
Yes
No
N/A
Haul Road
Paving - maintain first 300 feet
x
Asphalt millings - main haul road
x
Dust control application
x
Haul road is frozen/packed snow
Watering - as needed to control dust
x
No watering due to sub freezing temp
Washing - at least 2x per day
x
"
Sweeping - 1-2 times per week
x
Tracking
x
Records
x
Unknown
Excavation Area
Watering - as necessary
x
Load equipment washed
x
Hauling Operations
Covered trucks
x
15mph site speed
x
No idle >15 minutes
x
Trucks washed
x
Operations in compliance with Dust Control Plan? X Yes No Other:
Findings/Recommendations/Actions:
Below freezing temps during current mining operations have made watering and washing operations impossible and, for the
most part, unnecessary. Biggest issue noted was build up of snow and ice on haul road and out into the Highway 95
intersection. We discussed this issue with site personnel who did clean the intersection and haul road entrance numerous
times during our site visit. This should be monitored on an ongoing basis.
Remarks:
The environmental services provided by Indoor Environment Group's industrial hygienists, technicians, analysts and project managers for this project have been
conducted in a manner consistent with the degree of care and technical skill exercised by environmental professionals currently practicing in this area under
similar budget and time constraints. Recommendations contained in this report represent our professional judgment at the time the project was performed. This
is only a summary of work performed. Following or implementing the recommendations presented should not be considered final completion or closure of this
project. Additional work may be necessary to correct current and/or future problems. No warranty is implied or intended.
Summary Report Prepared/Submitted by:
Summary Report Review by:
Dave Gutterud
Title:
Phone number:
Title:
Phone number:
ector ,Operations
651-779-4300 x6
Sig
Signature